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2,060 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 3 in 4.

Best time to leave 6–7 am 93% arrive on time from SEA
Best single flight DL 812 SEA 05:30 → DTW 12:40 · 92% on time Avoid DL 1706 SEA 11:25 → DTW 18:41 · 79% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

5
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SEA
90
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78
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91
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74
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77
% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

Pick an hour to see this route’s flights leaving then.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
Delta 1,517 87% 1.0% 68 min
Alaska 543 84% 0.2% 51 min

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.
DL 812 SEA 05:30 DTW 12:40 92%
DL 810 SEA 23:10 DTW 06:27 88%
DL 533 SEA 14:30 DTW 21:48 86%
AS 313 SEA 09:18 DTW 16:33 85%
DL 1706 SEA 11:25 DTW 18:41 79%

All 8 flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.
DL 812 SEA 05:30 DTW 12:40 4h 10m 365 92% 0.5% 101 min
AS 313 SEA 09:18 DTW 16:33 4h 15m 362 85% 0.3% 45 min
DL 2324 SEA 09:45 DTW 17:05 4h 20m 127 90% 1.6% 48 min
DL 1706 SEA 11:25 DTW 18:41 4h 16m 302 79% 1.3% 56 min
DL 533 SEA 14:30 DTW 21:48 4h 18m 316 86% 0.9% 73 min
AS 343 SEA 22:22 DTW 05:41 4h 19m 51 86% 0.0% 42 min
AS 406 SEA 22:23 DTW 05:49 4h 26m 28 86% 0.0% 56 min
DL 810 SEA 23:10 DTW 06:27 4h 17m 361 88% 1.1% 72 min

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.
Delta SEA DTW 4h 18m 87% 1.0% 1,517 Flying now
Alaska SEA DTW 4h 19m 84% 0.2% 543 Flying now
Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON